High Prevalence of Gastroesophageal Reflux Disease in Parkinson’s Disease: A Questionnaire-Based Study

Table 2

Demographic characteristics of the participants.

	Parkinson’s disease	Healthy controls	P value
	(n = 102)	(n = 49)
Gender, n (%)
Female	58 (56.9)	25 (51.0)	NS
Male	44 (43.1)	24 (49.0)
Age, y, mean ± SD (range)	70.3 ± 8.3 (48–91)	70.7 ± 6.7 (59–85)	NS
Bent forward flexion, n (%)	23 (22.5)	1 (0.02)	<0.01
Heartburn, n (%)	21 (20.6)	4 (8.2)	0.04
FSSG
Mean ± SD (range)	5.9 ± 7.2 (0–37)	1.4 ± 3.1 (0–14)	<0.0001
More than 8, n (%)	27 (26.5%)	4 (8.2%)	<0.01

NS: no significance; FSSG: the frequency scale for symptoms of GERD (GERD: gastroesophageal reflux disease).